Proper sexual functioning is a very complex process. Organic issues such as endocrinologic, venogenic, arteriogenic, or neurogenic disorders can lead to ED. We also have to consider psychogenic factors such as stress and other emotional baggage that can also cause an organically perfectly healthy penis not to function properly. You can have damage to certain nerve systems of the penis that will still let you get an erection but not be able to complete intercourse. There are three types of erection which are psychogenic, reflexogenic and nocturnal. Psychogenic erections are caused by audiovisual stimuli. The brain sends signals to the spinal erection centers to start the erection process. (You see an adult movie and get hard.) Reflexogenic erection is produced by tactile stimulation to the penis. (You rub your penis and you get hard.) So in the case of a person who has an upper back spinal injury, he may be able to get an erection from tactile stimulation but not from psychogenic stimulation as the signal can’t make it from the brain to the erection centers in the lower portions of the spine. But the tactile stimulation may be able to reach the spinal erection centers to start an erection.
In my case, after excessive PE, I could still get an erection (through psychogenic stimulation). However, that would only last so long without feeling adequate pleasure from my sensory receptors, which are responsible to send to my brain feelings of touch, pain, temperature, etc.
With that being the case, I don’t believe my penis was just tired. I think there was actually some degree of damage to the nerves responsible for sending sensory information back to my brain. If the penis was tired and wore out, I would expect not to be able to get an erection, but still experience pleasure from tactile stimulation, which I did not for some days. ( A very scary thing to happen.)
A couple theories I have is that maybe the Power Jelk, when used with too much force, puts excessive pressure on the nerves causing damage and or desensitizing them. Another theory is maybe there is not enough elasticity in the nerves to accommodate a fast change in size. I was 7” BPEL and flaccid measurement when pulling on the head was about the same. In a few days going bizzerk power jelking and hanging a lot of weight for a newbie (20 lbs) I was 7.5” flaccid stretched. So I wonder if the nerves could have been damaged by not being able to stretch as fast as the other structures of the penis. I have not seen any literature on the elasticity of penile nerves to know if that is a reasonable theory.
In any case, the fright of having possibly damaged my perfectly working penis made me very aware to listen to the advice and warning of the veterans here to start light and GRADUALLY work up. Just for good measure I am waiting another week or so before resuming any PE in a much more responsible manner.
It is very hard to know what could be wrong with SandmannPV. If before 17 it worked / felt fine, then something happened after that. When did he start PE? Any sports injury to that area? For some people something as simple as riding a bike a lot can cause ED. How much are you masterbating? If a body part is constantly subject to excessive stimulation, it will lose sensitivity over time. It would be very simple to try leaving it alone for a while. You already stopped PE for 3 months. Stop all other forms of stimulation such as masturbation. Leave your dick alone for a while. Check the sites on foreskin restoration for tips from those guys on restoring sensitivity. Perhaps a long dose of sensory deprivation to the penis will cause it to regain sensitivity. That is what I would try given that you’ve already ruled out other problems through your urologist. Good luck and let us know how things turn out.